
This tool works, but I found it a bit clumsy. It's two beats in one. Screwdriver that fits the recessed Quadrajet idler screws. the other end is an open hex for another type of mixing auger. At the back of each socket is a square socket that fits into a small rubber grip. You stick the end you won't be using into this rubber grip and the square base fits, so when you turn the grip the tool rotates. This square base barely fits in the handle, constantly wobbling and falling out. Just when you're concentrating on how many turns you're finding, don't turn the tool at all because the tool fell out of the handle. It falls out just enough to stop spinning. Tool but if you don't see it keep twisting the handle as the extreme end of the tool stays inside but without the handle so you don't twist anything but the handle. I ended up forgoing the handle and just used my fingers to rotate the square base or handle attached to the socket. The shaft is a flexible cable which makes it handy to work in tight spaces or backwards, which I had to do since it was an RV so I had to work adjusting the rear of the carburetor. It worked, but the pen was a joke. I could use duct tape and solve the problem. This is a small tool, socket ends about 1/4" in diameter, square base about 3/8" and 2.5" foam rubber handle about 1/2" in diameter. Length 7-8 inches. The flexible shaft is approximately 1/8 inch in diameter. Easy to save or lose. .It's an expensive tool for what you get, but it's one of those tools you must have to get to those countersunk mixing screws. I've heard that others have taken a length of steel brake line (thin-walled metal tubing) and flattened one end just enough to fit the mixture screw, and the tubing was small enough in diameter. get into the niche. Too late for me, but maybe not for you.

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